//
//  CZUserAccountModel.swift
//  CZWeibo
//
//  Created by 左凯旭 on 16/8/10.
//  Copyright © 2016年 itcast. All rights reserved.
//

import UIKit
// 使用归档和解档 需要继承NSCoding
class CZUserAccountModel: NSObject,NSCoding {
     // 用户授权的唯一票据
    var access_token:String?
    // access_token的生命周期，单位是秒数 (普通用户过期时间为3天 vip用户为5年)
    var expires_in: NSTimeInterval = 0 {
        // NSDate(timeIntervalSinceNow: expires_in) 通过该方法传入秒数 返回一个当前时间+ 一个过期时间秒数的日期
        didSet{
            expires_Date = NSDate(timeIntervalSinceNow: expires_in)
        }
        
    }
    
    // 授权用户的UID
    var uid:String?
    //用户昵称
    var screen_name: String?
    //用户头像
    var avatar_large: String?
    //过期时间(程序员自己加的字段)
    var expires_Date: NSDate?
    
    
    //归档
    func encodeWithCoder(aCoder: NSCoder) {
        
        aCoder.encodeObject(access_token, forKey: "access_token")
        aCoder.encodeObject(expires_Date, forKey: "expires_Date")
        aCoder.encodeObject(uid, forKey: "uid")
        aCoder.encodeObject(screen_name, forKey: "screen_name")
        aCoder.encodeObject(avatar_large, forKey: "avatar_large")
    }
    
    //解档
    required init?(coder aDecoder: NSCoder) {
        
       access_token = aDecoder.decodeObjectForKey("access_token")as? String
       expires_Date = aDecoder.decodeObjectForKey("expires_Date")as? NSDate
        uid = aDecoder.decodeObjectForKey("uid") as? String
        screen_name = aDecoder.decodeObjectForKey("screen_name")as? String
        avatar_large = aDecoder.decodeObjectForKey("avatar_large")as? String
        
    }
    
    
    
    
    init(dict:[String:AnyObject]) {
        
        super.init()
        setValuesForKeysWithDictionary(dict)
    }
    
    
    override func setValue(value: AnyObject?, forUndefinedKey key: String) {
        
    }
    
    // 重写description
    override var description: String{
        let keys = ["access_token","expires_Date","uid","screen_name","avatar_large"]
        return dictionaryWithValuesForKeys(keys).description
    }
    
    
}








